Multiple-turret-tool holder



W. .A. SALTER. v MULTIPLE TURRET TOOL HO LDER.

APPLiCATlON FILED JULY 6.1920.

Patented Aug. 22, 1922.

P ca .2

INVENTOR W! TNESSES:

MULTE-TUERET-TOOL HOLDER.

Spceieation of Letters Patent.

Patented Aug. ?22, 1923&

Application filed July 6, 1920. SerialNo. 394326.

TO (ill whom ti; may cancer Be it known that l, umani, A minus, a citizen of the United States resic ng at Kansas City, in the county ot f ckt-;on and State of Missourh have invented certain new and useit'ul l mprorements of Multiple-Turret-Tool Holders, of which the following is a specification.

My invention relates to tool hoider 'tor use on lathes and other machines used in machine shops, and has for its object the holding of a number ot edged cutting tools, any one of which can be without changing the setting oi': the others be brought into position for use against the work in hand, and locked into position .tor use. i To attain this end penerally speaking my invention consists or a central sup 'mrting member; that is bolted rigidly to the tool rest of the carriage of the lathe or machine, a tool carrier revolving around the supporting member, an Operating and locking bolt, connected between the supporting member and the tool carrier andadjustable means by which the tool carrier can be set and locked at different heights, at its `working positions.

As my invention contemplates the application oi' these improvements to the most highly organized mechanisin of' multiple turret tool holders of the present day, it is obvious the details of organization and construction herein shown may be Varied when they include well known equivalents therefor, with departing from the scope of my claims.

The subject matter claimed is hereinatter set forth in the claims at the end of this specification.

In the accompanying drawings, I hare represented a multiple turret tool holder embodying all of my improvements in the best way now known to me is necessary to illustrate the subject matter claimed Some of these improvements however may be used without the others, and in tools of different details in Construction from the one herein shown.

Fig. l is a sectional side view of the assembled tool holder.

Fig. 2 is a top View of the supporting member and the tool carrier.

Fig. 3 is a side and 'front View of the operating 'looking member or bolt.

Fig. 4 is a top view of the top end of the supporting member at line 1-2, and showing the positions of the Operating looking member and. the Operating handler i In the practice of my invention, the supporting member B, is made with a long cylindrical shatt havinga flange for a base, that sets on the rest, oi the carriage t the machine, on which it is mounted. This fiauge is bored and carries the finding pin i that registers with the holes H' in the tool carrier A. The cylindrical portion of the supporting member B is bored throughout its length with a hole through which passes the bolt E cngaging with the slot block E and by means of which it is rigidly fastened to the lathe carriagc. This cylindrical portion of the supportingmemberis also bored at the top end to receive the locking spring K, and in the same section is slotted to receive the looking Operating bolt C, and at the lower end of the looking spring a certain crosssection is planed away to receive the Operating handle D, which is fastened to it by means of the screw I,

The tool carrier A, is p'referable in its main section of 'a square ferrin to :Carry the 'tool bits and having a cylindrical section at its upper end. The square section has preferably rectangular grooves cut on all ot' its tour sides to receive the cutting tool bits, which are held in positions for work by means of the screws J. It is also bored on its aXial line, to make a close accurate slip fit with the supporting` member B, and its flange, and is bored also in its square portion with the holes H' all of which are of equal distance from the axial center of this tool holder and register with the finding pin G. These holes H' are threaded from the top nearly throughout their length and receive the threaded adjusting screws H with which they engage. The tool holder A also at its top end of the cylindrical section has a number of beveled notches A" cut that engage with the looking bolt C, the location of these notches being such that when the finding pin G registers with one of the holes H', a corresponding looking notch on its beveled side engages with the beveled side of the looking bolt C' of the locking bolt G, the crowd between the notch and beveled lug bringing the pin G firmly against the side of the hole H', and holding the tool carrier A rigidly and without movement until released. There are as many looking notches at the upper end of the tool carrier as there are holes H' or tool bit positions.

pin G; as shown in Fig. l and Fg. 3. It'

also has near its central section a .looking lug C' that is beveled on one side, and engages with the looking notoh A" of the tool carrier A. It also has a hole cut in its central 'part C" to engage with the Operating handle D, that is oarried by the supporting member B.

In operation pressing down on the operating handle D, first lifts'the looking lug I from engagement with the looking notoh A and then lifts by means of the lug at the lower end of the looking bolt C engaging with the groove in the central part of the tool carrier A, this tool carrier A is lifted from the finding pin G, and is free to re- Volvo to any osition desired by the person using it. Anc after revolving the tool carrier until the propercutting tool bit is in position for use, releasing the 'Operating handle D, allows the tool carrier to descend, the finding pin Gr being on the proper hole `H' and the spring K automatically forces the looking bolt C downward until the locking lug C' engages with the looking notch A" and rigidly holds the tool carrier A in' position.

Raising and lowering the adjusting screws H, varies the distance which the finding pin G can enter theholes H' and corresponding varies the height at which the tool carrier is looked for use, the ends of the screws H at their lower terminals, being designed to engage with the upper end of the finding pin G, and providing means for vertical adjustable setting of the cutting tool. eclges.

I claim as my invention and desire to secure by Letters Patent:

1. In a multiple turret tool holder, the combination of a supporting member, a revolving tool carrier member having looking recesses with registry holes, a registry stop pin carried by the supporting member engaging with the registry holes in the tool carrier and the adjustable stop screws therein, an Operating looking bolt, and means whereby the tool carrier is locked by wedging, action between one side of thestop pin and the beveled side of the looking bolt engaging with a looking recess.

2. In a multiple turret tool holder, the combinaton of a supporting member carry ing a stop registry pin, a revolving tool carrier having registry holes with acljustable height screws therein looking notches, an Operating looking bolt having a bevel side, and operative means whereby the beveled section of lockingbolt engages with the locking notches of the tool carrier.

In testimony whereof, l have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM A. SALTER 

